EP1628593A4 - Prosthesis mounting device and assembly - Google Patents
Prosthesis mounting device and assemblyInfo
- Publication number
- EP1628593A4 EP1628593A4 EP04754035A EP04754035A EP1628593A4 EP 1628593 A4 EP1628593 A4 EP 1628593A4 EP 04754035 A EP04754035 A EP 04754035A EP 04754035 A EP04754035 A EP 04754035A EP 1628593 A4 EP1628593 A4 EP 1628593A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- abutment
- implant
- preppable
- prosthesis
- preppable abutment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/225—Fastening prostheses in the mouth
- A61C13/265—Sliding or snap attachments
- A61C13/2656—Snap attachments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/0075—Implant heads specially designed for receiving an upper structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0087—Means for sterile storage or manipulation of dental implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0054—Connecting devices for joining an upper structure with an implant member, e.g. spacers having a cylindrical implant connecting part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0057—Connecting devices for joining an upper structure with an implant member, e.g. spacers with elastic means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0059—Connecting devices for joining an upper structure with an implant member, e.g. spacers with additional friction enhancing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
Definitions
- This invention relates generally to a prosthesis mounting device for securing a prosthesis on an implant supported in bone tissue.
- crowns, bridges and dentures have long been the standard prosthetic devices used to replace missing teeth. Such devices are secured to a jaw bone using a surgical anchor known as a dental implant or a prosthesis mounting device.
- a root form screw implant After a root form screw implant is firmly positioned in bone, and once the osseointegration process is complete, the tissue covering the osteotomy site is again reflected and an attachment device called an abutment is affixed to a head of the implant that remains exposed after installation.
- a dental prosthetic can then be cemented or screwed onto the prosthetic abutment portion of the implant.
- the prosthetic abutment portion of the device is available in many shapes, sizes and designs to accommodate various treatment applications.
- Dentatus® USA Ltd. began experimenting with endodontic posts designed to be implanted directly into a jaw bone. These endontic posts, known as MTI implants, had a one-piece design incorporating both screw and abutment. Because the diameter of the MTI implant was only 1.8 mm, Dentatus® was able to develop an implantation procedure that did not require a large opening in the bone to receive the implant. All that was necessary was a small, shallow starter hole that could be formed in jaw bone tissue directly through soft tissue without having to surgically lay back a flap of the soft tissue to expose the bone beneath.
- This new approach was minimally invasive and provided an implant that could be immediately loaded without having to wait for an extended period of time for osseointegration to occur.
- this new type of implant that's dimensionally small enough to self-tap into bone tissue without splitting the bone tissue became known as the mini dental implant.
- TMTEC® Corporation is currently marketing a Sendax mini dental implant system that comprises a prosthesis mounting device having a threaded shaft, and an abutment including a square nut and a ball-shaped O-ring abutment.
- the threaded shaft is tapered at a first end to allow the shaft to self-tap into bone tissue starting from a small, shallow pilot hole formed in bone tissue. Because the shaft self-taps past the depth of the pilot hole, it immediately integrates with the bone tissue.
- the square nut is attached to and extends integrally and axially from a second end of the threaded shaft opposite the first end.
- the O-ring abutment is attached to and extends integrally and axially from the square abutment.
- the O-ring abutment is shaped to engage and support a prosthetic tooth or set of teeth.
- this system is unable to disconnect or automatically discontinue torque application during installation when a predetermined bone density is encountered.
- this system is unable to disconnect or automatically discontinue torque application during installation when a predetermined bone density is encountered.
- Such a device warn an installer that the bone tissue lacks sufficient density to properly support a prosthetic tooth.
- the Sendax mounting system cannot indicate to an installer when it is fully seated in bone tissue, the platform formed at the head area of the shaft is no greater than the cross-sectional area of the shaft itself and provides little support for a prosthesis, and it doesn't provide a satisfactory interface between the implant and surrounding soft tissues.
- a prosthesis mounting assembly in implant dentistry, it is also known for a prosthesis mounting assembly to include a large titanium appendage or "preppable” abutment that detachably extends from an axial top surface of a full-sized dental implant or "tooth post". Such a preppable abutment is milled or “prepped”, as a tooth would be prepped, into a generally triangular prism-like shape suitable to accept and support a crown or bridge. It's then fixed to the top surface of an implant using an axially-oriented prosthetic fixation screw.
- a preppable abutment of this type will also include either an internal or an external hex key or recess that engages a complementary recess or key formed on or in the axial top surface of an implant and the appendage may be milled either in the mouth of a model using a dentist's drill or by sending the preppable abutment to dental lab where a milling machine is used to prep the appendage.
- an implant is first surgically installed by incising and laying back gum tissue to reveal jaw bone tissue, drilling a hole in the bone, inserting the implant, then closing the gum tissue over the osteotomy site and allowing oseointegration to occur.
- the preppable abutment is then installed on the implant by re-incising and laying back the gum tissue to reveal the axial top surface of the implant, positioning the preppable abutment on the implant, and fixing it in place with the prosthetic fixation screw.
- the gum tissue is then closed and allowed to heal.
- An impression is then taken of the preppable abutment and a coping is formed in the impression to duplicate the preppable abutment.
- the coping is used to form a stone model duplicating the patient's mouth.
- a prosthetic tooth or bridge is then formed on the stone model and coping to fit in the patient's mouth and over the preppable abutment extending upward from the embedded implant. Finally, the prosthetic tooth or bridge is supported on the preppable abutment.
- this type of preppable abutment requires an implant that is specifically configured to accept and support it. IN addition, this design is prone to micro movement that can but stress on and eventually break a prosthetic tooth or bridge.
- a prosthesis mounting device for securing a prosthesis on an implant supported in bone tissue.
- the device includes a metallic appendage that's configured to be carried by a dental implant, and to be milled into a shape suitable to accept a dental prosthetic.
- the device also includes a recess that extends axially upwardly from an axial bottom end of the appendage and is configured to fit over an O-ring receiver abutment of a dental implant.
- the device fits over an O-ring receiver abutment, it allows for the manufacture of a single implant that can be used to support either a preppable abutment or a prosthetic having an O-ring interface. It also obviates the need for a surgical operation to install the preppable abutment on an implant after the implant has been installed. Also, a preppable abutment constructed according to the invention is able to function as an impression coping since it can come off in an impression tray. Still further, it can be secured in place on an implant without requiring a fixation screw.
- a prosthesis mounting assembly for securing a prosthesis on an implant supported in bone tissue.
- the assembly comprises an implant having a threaded shaft configured to be screwed into bone tissue and an O-ring receiver abutment attached to and axially extending from an aft end of the shaft.
- the assembly also includes a preppable abutment that fits over and is supported on the O-ring receiver abutment of the implant.
- the invention also includes a method for securing a prosthesis on a patient's jaw bone in the patient's oral cavity.
- one or more implants are installed in a patient's jaw bone, each implant including an O-ring receiver abutment.
- a preppable abutment is then removably received on the or each implant.
- the or each preppable abutment is then prepped, and one or more dental prosthetics are formed to be supported on the or each preppable abutment.
- the or each preppable abutment is supported on the or each implant.
- Figure 1 is a front view of a prosthesis mounting device constructed according to a first embodiment of the invention
- Figure 2 is a cross-sectional front view of the device of Figure 1 ;
- Figure 3 is a cross-sectional view of the device of Figure 1 taken along line 2-2 in Figure i;
- Figure 4 is a front view of the prosthesis mounting device of Figure 1 with a handle portion of the device connected to a rotary driver and a forward end of a threaded shaft portion of the device engaged in a small pilot hole formed in bone tissue;
- Figure 5 is a front view of the prosthesis mounting device of Figure 4 with the handle portion of the device broken off and the threaded shaft portion of the device partially screwed into the bone tissue;
- Figure 6 is a front view of the prosthesis mounting device of Figures 4 and 5 with the handle portion removed and a ratchet wrench engaging a nut portion of an abutment of the device;
- Figure 7 is a front view of the prosthesis mounting device of Figures 4-6 shown after having been screwed into the bone tissue to a full desired depth;
- Figure 8 is a front isometric view of a prosthesis mounting device constructed according to a second embodiment of the invention.
- Figure 9 is an isometric view of a driver adapter supported on the mounting device of Figure 8.
- Figure 10 is a front view of a ratchet wrench engaging the driver adapter of Figure 9 and showing a threaded portion of the mounting device disposed in bone tissue;
- Figure 11 is a front view of the driver adapter of Figure 9;
- Figure 12 is an end view of the driver adapter of Figure 11 ;
- Figure 13 is a cross-sectional front view of the driver adapter of Figure 9;
- Figure 14 is an end view of the driver adapter of Figure 9 showing an end opposite the end shown in Figure 12;
- Figure 15 is a front view of an alternative driver adapter embodiment.
- Figure 16 is a side view of a prosthesis mounting device constructed according to the invention.
- Figure 17 is a right end view of the prosthesis mounting device of Figure 16.
- Figure 18 is a cross-sectional side view of the prosthesis mounting device of Figures 16 and 17 and is taken along line 18-18 of Figure 17;
- Figure 19 is a partial cross-sectional side view of a prosthesis mounting assembly constructed according to the invention and showing the O-ring receiver abutment of an implant of the assembly received within the preppable abutment of Figures 16-18.
- a first embodiment of a prosthesis mounting device for securing a prosthesis such as a prosthetic tooth on bone tissue 14 is generally shown at 10 in Figures 1-7.
- a second embodiment is shown at 10' in Figures 9 and 10.
- Reference numerals with the designation prime (') in Figures 9 and 10, and in Figures 8 and 11-14, indicate alternative configurations of elements that also appear in the first embodiment. Unless indicated otherwise, where a portion of the following description uses a reference numeral to refer to the figures, that portion of the description is intended to apply equally to elements designated by primed numerals in Figs. 8-14.
- the device 10 includes a threaded shaft 12 or bone screw that is screwed into bone tissue 14 and a prosthetic abutment 16 attached to and axially extending from an aft end of the shaft 12.
- the abutment 16 engages and supports a prosthesis to serve as an interface between the prosthesis mounting device 10 and a prosthesis.
- the device 10 also includes an installation handle 18 connected to and extending axially from the abutment 16. The handle 18 is engaged and rotated by a manual or motor driven rotary driver 20 and is detached from the abutment 16 under a pre-determined torque load so that the handle 18 breaks off when bone tissue of a predetermined density is encountered.
- the handle 18 extends from an aft end 24 of the abutment 16 from a weakened area 26 that defines an interface between the handle 18 and the abutment 16.
- This weakened area 26 is configured to break under a pre-determined torque load of approximately 30 Newton- centimeters (30 Ncm).
- the handle 18, abutment 16, and shaft 12 are integrally formed with one another as a single unitary piece.
- the weak area is a neck formed at the interface between the handle 18 and the abutment 16.
- the handle 18 is a contra-angle post that can be engaged and rotated by a low speed contra-angle rotary driver 20.
- the contra-angle rotary driver 20 rotates the device 10 at a speed in the range of approximately 20-50 rpm.
- the abutment 16 includes a nut 28 fixed to and axially extending from an aft end 30 of the threaded shaft 12.
- the nut 28 is shaped to be engaged and rotated by a tool adapted for that purpose.
- the nut 28 has a square cross section as measured perpendicular to a rotational axis 32 of the device 10.
- the nut 28 can be engaged and rotated by a ratchet wrench 22 or similar implement having a complimentary shaped engagement structure.
- a nut and complimentary wrench of any other suitable configuration may be used instead of a square nut 28 and a wrench 22 with a square nut engagement box.
- the abutment 16 also includes an O-ring abutment 34 fixed to and axially extending from an aft end 36 of the nut 28.
- the O-ring abutment 34 is an annular, generally spherical appendage known in the art as an "O-ball.”
- the O-ring abutment 34 is designed to engage an O-ring disposed within a prosthesis according to any one of a number of different methods known in, the art.
- the O-ring abutment 34 has a neck portion 38 where the O-ring abutment 34 merges with the aft end of the nut 28.
- the threaded shaft 12 includes a tapered portion 40 shaped to wedge the shaft 12 into bone tissue 14 and instantly integrate with the bone tissue 14 upon installation. This increases initial stabilization and makes it possible to affix a permanent prosthesis to the O-ring abutment 34 immediately following installation.
- the device 10 includes a collar 42 extending radially outward from around the aft end of the threaded shaft 12.
- the collar 42 is shaped to arrest threaded insertion of the device 10 at its proper depth.
- the shape of the collar 42 includes a frusto-conical surface 44 tapering radially outward and back from the threaded portion 12 of the shaft 12 to a point adjacent the aft end 30 of the shaft 12.
- the collar is polished to promote adjacent soft tissue growth.
- the device 10 comprises a titanium alloy.
- a device 10 constructed according to the first embodiment of the invention can be secured in bone tissue 14 by first transporting the device 10 in a sterile condition within a sterile package.
- the package is opened and a rotary driver 20 is connected to the handle 18.
- the rotary driver 20 is then used to withdraw the device 10 from the package and to transport the device 10 to the surgical site.
- the mounting device 10 is then screwed into bone tissue 14 by first engaging the threaded shaft 12 with a pilot hole formed into the bone tissue 14 through the soft tissue 14 covering the jaw bone as shown in Figure 4.
- the rotary driver 20 is then operated to rotate the device 10 until the handle 18 either breaks off or the device 10 is fully seated to a pre-determined depth.
- the handle 18 breaks off before the device 10 reaches its full pre-determined depth as shown in Figure 5.
- the mounting device 10 is then screwed to its full desired depth in the bone tissue 14 as shown in Figure 7. This is accomplished by engaging and rotating the prosthetic ' abutment 16 with a manual ratchet wrench 22 or similar implement as shown in Figure 6. If the handle 18 does not break off before the device 10 reaches its desired depth, the mounting device 10 is removed from the bone tissue 14 and an alternative prosthetic mounting method and/or device 10 more adaptable to supporting a prosthesis on soft bone tissue 14 is selected.
- the installation handle 18 of the device 10 provides a hands-free delivery system. It allows a device 10 to be retrieved from a sterile container and transported to a surgical site without contaminating the portion of the shaft 12 to be implanted in bone tissue 14.
- the handle 18 also serves to transmit torque from a rotary driver 20 to the device 10 for threading the device 10 into bone tissue 14 without damaging the abutment 16. Abutment 16 damage can comprise secure attachment of a prosthesis to the device 10.
- the device 10 is a "mini" dental implant dimensioned to self-tap into bone tissue starting at a small, approximately V" deep starter hole.
- the shaft portion 12 of the device 10 is approx. 1.8mm in diameter. However, in other embodiments, the shaft may be up to approximately 2mm in diameter depending on the visco-elastic properties of the bone.
- the second prosthesis mounting device embodiment 10' is essentially identical to the first embodiment 10 except that the second embodiment includes no installation handle. Instead, as shown in Figure 8, an O-ball 34' defines an upper end of the device 10'.
- the invention also comprises a driver adapter 50 that receives the O-ball 34' and the square nut 28' into a complementary-shaped recess that's best shown at 52 in Figure 13.
- An inner chamber 54 of the recess 52 is shaped to releasably retain the O-ball 34' in snap-fit fashion.
- An outer section 56 of the recess 52 is shaped to rotatably engage the nut when the O- ball 34' is fully received into the inner chamber 54.
- An upper end 58 of the driver adapter 50 has a generally square cross-section shaped to be received into and rotatably engaged by a socket portion 60 a standard ratchet wrench 22' as shown in Figure 10.
- a peripheral trench 62 is formed around the upper end 58 of the driver adapter 50 and a rubber O-ring 64 is received into the trench 62 as shown in Figures 9, 10, 12, and 13.
- the O-ring 64 provides an interference fit between the upper end 58 of the driver adapter 50 and an inner surface 66 of a ratchet wrench 22' that prevents the driver adapter 50 from falling out of a ratchet wrench 22' during transport to an osteotomy site.
- a contra-angle drill adapter shaft 68 may be attached to or integrally formed with the driver adapter 50" and extend axially from the upper end 58" of the driver adapter 50".
- a contra-angle shaft would allow an installer to use a contra-angle drill to install the device.
- an installer can engage the mounting device 10', using either a ratchet wrench 22' or a contra-angle drill, and remove the device 10' from its sterile packaging without contaminating the device. The installer can then transport the mounting device 10' to an osteotomy site and install the device without ever touching or otherwise contaminating it.
- a third embodiment of a prosthesis mounting device for securing a prosthesis on an implant supported in bone tissue is generally indicated at 70 in Figures 16-18.
- a prosthesis mounting assembly 72 for securing a prosthesis on an implant supported in bone tissue is generally shown at 72 in Figure 19 and includes the prosthesis mounting device 70 of Figures 16-18 and a miniature dental implant 74 having an O-ring receiver abutment 76 attached to and axially extending from an aft end of a threaded shaft 78 or bone screw.
- the prosthesis mounting device 70 includes a titanium appendage or preppable abutment 80 that's shaped to be carried by a dental implant 74 or "tooth post".
- the preppable abutment 80 is milled, or “prepped", as a tooth would be prepped, into a generally triangular prism-like shape, or any other shape suitable to accept and carry a dental prosthetic such as a crown or a bridge.
- the device 70 also includes a recess 82 or axial channel that extends axially upwardly from an axial bottom end 84 of the preppable abutment 80. As is best shown in Figure 19, the recess 82 is shaped to fit over an O-ball abutment or O-ring receiver abutment 76 of a miniature dental implant 74.
- the recess 82 includes an axially lower portion 86 configured to engage a multi-faceted nut 88 of a dental implant 74 to limit rotation of a prosthetic relative to the preppable abutment 80.
- the axially lower portion 86 of the recess 82 is shaped to complement the shape of the multi-faceted nut 88 of the implant 74 to provide superior anti-rotation characteristics - as is particularly important in single-toothed prosthetic applications.
- the recess 82 is shaped to fit closely over the O-ball receiver abutment 76 and the multi- faceted nut 88 of the implant 74 to mimmize micro-movement between the preppable abutment 80 and the implant 74.
- the multi-faceted nut 88 has a square cross- section as measured perpendicular to a rotational axis of the device 70 and the recess 82 of the preppable abutment 80 has a generally square cross-section shaped to complement and receive the nut 88.
- the nut 88 and recess 82 may have complementary cross- sectional shapes that are other than square.
- the recess 82 has an opening 92 shaped to receive a collar 90 that extends radially outward from around an aft end of the threaded shaft 78 of the implant 74 as best shown in Figure 19.
- the opening 92 to the recess 82 has a frustoconical shape complimenting the shape of an upper, generally annular ramped surface 94 of the collar 90. This further secures the prosthesis mounting device 70 or preppable abutment 80 against micro- movement.
- a layer of resin cement 96 bonds the O-ring receiver abutment 76 to the preppable abutment 80.
- a prosthesis can be secured on an implant 74 supported in bone tissue by first installing one or more implants 74 in a patient's jaw bone within the patient's oral cavity, each implant 74 including an O-ring receiver abutment 76.
- the procedure for installing such an implant 74 is well-known in the art and is described in detail above.
- a preppable abutment 80 constructed according to the invention is then removably supported on each implant 74 by providing each preppable abutment 80 over a corresponding one of the O-ring receiver abutments 76 in respective positions for respective axially lower ends of the preppable abutments 80 engage respective upper surfaces 94 of the implant collars 90.
- the preppable abutments 80 are then prepped by milling each preppable abutment 80 as required to accommodate one or more dental prosthetics such as a bridge or respective prosthetic teeth.
- Each prepped abutment is milled to achieve parallelism, i.e., a parallel relationship between the surfaces of each preppable abutment 80, to provide a tighter fit over the O-ring receiver abutments 76 and a parallel relationship between the surfaces of adjacent preppable abutments 80 to allow a bridge to be slid over all the preppable abutments 80 along a single line of motion.
- the achievement of parallelism between abutments is important when multiple implants 74 and preppable abutments 80 are used.
- each implant 74 is angled a little bit differently after it has been installed in bone tissue.
- the preppable abutments 80 are therefore machined in such a way as to conect for such differences in alignment or orientation.
- One or more dental prosthetics are then formed to be supported on each of the preppable abutments 80. This is done by pressing an impression tray over each preppable abutment 80, and picking up each preppable abutment 80 in the impression tray such that the preppable abutments 80 serve as their own impression copings.
- An O-ball abutment analog is then inserted into each preppable abutment 80 carried in the impression tray.
- the O-ball abutment analogs are devices having the same size and shape as the O-ball abutments of the mini implants 74.
- Liquid casting material is then provided in the impression tray and allowed to harden into a model of the patient's teeth and gums in the vicinity of and surrounding the preppable abutments 80 and implants 74.
- the model is then removed from the impression tray and the preppable abutments 80 are also removed from the impression tray.
- the overall abutment analogs are then removed from each of the preppable abutments 80 and the preppable abutments 80 are then supported on the implants 74.
- the preppable abutments 80 are cemented onto the implants 74 with resin cement and then a metal reinforced bridge is cemented onto the preppable abutments 80.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/453,309 US7217130B2 (en) | 2002-06-07 | 2003-06-03 | Prosthesis mounting device and assembly |
PCT/US2004/017330 WO2004108014A2 (en) | 2003-06-03 | 2004-06-03 | Prosthesis mounting device and assembly |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1628593A2 EP1628593A2 (en) | 2006-03-01 |
EP1628593A4 true EP1628593A4 (en) | 2007-08-01 |
EP1628593B1 EP1628593B1 (en) | 2009-04-15 |
Family
ID=33510382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04754035A Expired - Lifetime EP1628593B1 (en) | 2003-06-03 | 2004-06-03 | Prosthesis mounting device and assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US7217130B2 (en) |
EP (1) | EP1628593B1 (en) |
JP (1) | JP4489767B2 (en) |
KR (2) | KR100925766B1 (en) |
ES (1) | ES2326653T3 (en) |
WO (1) | WO2004108014A2 (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
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US8043089B2 (en) | 1999-04-23 | 2011-10-25 | 3M Innovative Properties Company | One piece dental implant and use thereof in prostodontic and orthodontic applications |
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Also Published As
Publication number | Publication date |
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US7217130B2 (en) | 2007-05-15 |
JP4489767B2 (en) | 2010-06-23 |
WO2004108014A2 (en) | 2004-12-16 |
KR20070103086A (en) | 2007-10-22 |
JP2006526474A (en) | 2006-11-24 |
KR20060056898A (en) | 2006-05-25 |
US20040018471A1 (en) | 2004-01-29 |
EP1628593B1 (en) | 2009-04-15 |
ES2326653T3 (en) | 2009-10-16 |
KR100925766B1 (en) | 2009-11-17 |
EP1628593A2 (en) | 2006-03-01 |
WO2004108014A3 (en) | 2005-07-07 |
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